Featured Research

from universities, journals, and other organizations

Researchers aim for consensus on measuring the impact of visual impairment

Date:
April 1, 2010
Source:
Association for Research in Vision and Ophthalmology
Summary:
New guidelines that outline best practices for measuring the economic burden of visual impairment will make it easier for the policy, science and medical communities to draw conclusions and compare results across studies.

New guidelines that outline best practices for measuring the economic burden of visual impairment will make it easier for the policy, science and medical communities to draw conclusions and compare results across studies.

Related Articles


The guidelines arose from a working group convened by the Association for Research in Vision and Ophthalmology (ARVO) and the International Agency for the Prevention of Blindness (IAPB). They were published this month in the ARVO journal Investigative Ophthalmology and Visual Science.

The group, representing participants from around the world and from major vision research organizations, came together to review the methods used in two US studies and one Australian study and to develop a consensus on appropriate methods to employ in future studies on the cost of vision impairment regardless of where they are conducted.

"When estimates of the cost of visual impairment vary over time or across countries," explains Johns Hopkins University researcher Kevin Frick, PhD, the lead author, "policy makers are left to ponder whether one estimate differs from another because of changes in the population, changes in the impact of the disease or changes in the methods. Researchers can help policy makers by removing one of the potential variables -- changes in methods."

In September 2007 ARVO and IAPB organized the Vancouver Economic Burden of Vision Loss Group to examine the various methods used to measure visual impairment impact and recommend best practices. The panel of 12 leading vision researchers and health care professionals proposed seven guidelines, summarized as follows:

  1. A comprehensive list of costs includes monetary expenditures on health care (hospital, outpatient, and other), monetary expenditures on things other than health care, loss of patient productivity, loss of family member productivity, deadweight losses and loss of patient wellbeing.
  2. In any assessment of either prevalent or incident costs, the authors should identify the specific items included under the major categories in recommendation 1.
  3. Costs should be presented as separate line items to facilitate comparisons among studies.
  4. A default position is to use a single discount rate for all calculations in an analysis.
  5. The assumed value of purchasing a DALY or QALY should be clearly stated and justified.
  6. It is essential to indicate the perspective of costs included.
  7. The decision-making context and starting point of the analysis should be clear. A statement of whether and how the analysis will be used as part of other analyses is essential.

According to co-author Steven Kymes, PhD, of Washington University in St. Louis, "Higher quality studies using a methodology that consistently follows guidelines will help decision makers and advocates in the ophthalmology community to better understand the magnitude of the impact of visual impairment, how it is likely to change with demographic changes and no additional interventions, and how additional interventions can change the impact over time."

Dr. Frick says the next task is ensuring that the guidelines are disseminated within the research community. Hosting a workshop at an industry conference and sharing the recommendations in additional ophthalmology journals would enhance awareness of the guidelines and support efforts to adopt their practice.

"Following consensus-based guidelines will also make it easier for those asking questions about the impact of visual impairment to know that they are receiving high quality estimates," says Dr. Frick. "And those who are involved in the process of making sure only high quality proposals are funded and only high quality manuscripts get published will have an easier task."


Story Source:

The above story is based on materials provided by Association for Research in Vision and Ophthalmology. Note: Materials may be edited for content and length.


Journal Reference:

  1. K. D. Frick, S. M. Kymes, P. P. Lee, D. B. Matchar, M. L. Pezzullo, D. B. Rein, H. R. Taylor. The Cost of Visual Impairment: Purposes, Perspectives, and Guidance. Investigative Ophthalmology & Visual Science, 2010; 51 (4): 1801 DOI: 10.1167/iovs.09-4469

Cite This Page:

Association for Research in Vision and Ophthalmology. "Researchers aim for consensus on measuring the impact of visual impairment." ScienceDaily. ScienceDaily, 1 April 2010. <www.sciencedaily.com/releases/2010/04/100401164620.htm>.
Association for Research in Vision and Ophthalmology. (2010, April 1). Researchers aim for consensus on measuring the impact of visual impairment. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2010/04/100401164620.htm
Association for Research in Vision and Ophthalmology. "Researchers aim for consensus on measuring the impact of visual impairment." ScienceDaily. www.sciencedaily.com/releases/2010/04/100401164620.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins